Question

A tertiary butyl carbocation is more stable than a
secondary butyl carbocation because of which of
the following?​

Answer 1

Answer:

Hyperconjugation

Explanation:

Tert. carbocation has greater number of alpha H in comparison to sec carbocation.This increases hyperconjugation which results to its greater stability.

Moreover in tert butyl carbocation the three CH3 groups exert +I effect which results in greater electron density on the +vely charged carbon. In sec. carbocation the +I effect is comparitively less due to only two CH3 groups.Greater electron density results in stabilisation as it compensates for the +ve charge thus making it less reactive and more stable.

Thus tert butyl carbocation is more stable than sec. carbocation.